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310403042 = 2228168041
BaseRepresentation
bin10010100000000…
…101111111100010
3210122002002220222
4102200011333202
51113430344132
650445003042
710456245065
oct2240057742
9718062828
10310403042
1114a23a444
1287b53482
134c400c51
142d3208dc
151c3b6412
hex12805fe2

310403042 has 8 divisors (see below), whose sum is σ = 465815532. Its totient is φ = 155131200.

The previous prime is 310403011. The next prime is 310403047. The reversal of 310403042 is 240304013.

It can be written as a sum of positive squares in 2 ways, for example, as 271227961 + 39175081 = 16469^2 + 6259^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 310403042.

It is not an unprimeable number, because it can be changed into a prime (310403047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29459 + ... + 38582.

Almost surely, 2310403042 is an apocalyptic number.

310403042 is a deficient number, since it is larger than the sum of its proper divisors (155412490).

310403042 is a wasteful number, since it uses less digits than its factorization.

310403042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70324.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 310403042 is about 17618.2587675400. The cubic root of 310403042 is about 677.0831243975.

Adding to 310403042 its reverse (240304013), we get a palindrome (550707055).

The spelling of 310403042 in words is "three hundred ten million, four hundred three thousand, forty-two".

Divisors: 1 2 2281 4562 68041 136082 155201521 310403042